This article is about the temporary test equipment. For the blower usually mounted above a door, see Air door.
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Single fan blower door system
A blower door is a machine used to perform a building air leakage test. It can also be used to measure airflow between building zones, to test ductwork airtightness and to help physically locate air leakage sites in the building envelope.[1]
There are three primary components to a blower door: a calibrated, variable-speed blower or fan, capable of inducing a range of airflows sufficient to pressurize and depressurize a variety of building sizes; a pressure measurement instrument, called a manometer, to simultaneously measure the pressure differential induced across the face of the fan and across the building envelope, as a result of fan airflow; and a mounting system, used to mount the fan in a building opening, such as a door or a window.
Airtightness testing is usually thought of in residential settings.[according to whom?] It is becoming more common in commercial settings. The General Services Administration (GSA) requires testing of new US federal government buildings.[2]
A variety of blower door air tightness metrics can be produced using the combination of building-to-outside pressure and fan airflow measurements. These metrics differ in their measurement methods, calculation and uses. Blower door tests are used by building researchers, weatherization crews, home performance contractors, home energy auditors, and others in efforts to assess the construction quality of the building envelope, locate air leakage pathways, assess how much ventilation is supplied by the air leakage, assess the energy losses resulting from that air leakage, determine if the building is too tight or too loose, determine if the building needs mechanical ventilation and to assess compliance with building performance standards.[3]
^"Blower Door Tests | Department of Energy". Energy.gov. 2012-04-02. Retrieved 2015-03-29.
^"Unmasking Commercial Building Energy Loss | RSES Journal March 2014". Archived from the original on 2015-04-14. Retrieved 2015-03-29.
^"What is a Blower Door Test?". Everydaygreendc.com. 2012-11-30. Archived from the original on 2015-04-02. Retrieved 2015-03-29.
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stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
stove Zone valve Measurement and control Air flow meter Aquastat BACnet Blowerdoor Building automation Carbon dioxide sensor Clean air delivery rate (CADR)...
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